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SQL for Regional Operational Drivers
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SQL for Regional Operational Drivers

HardSQL · PostgreSQL

Problem

Write a SQL query to analyze operational performance by region and month, joining orders, accounts, and support tickets to identify the top drivers of delayed resolution at Confluent. Treat resolved tickets taking more than 48 hours as delayed. Return only regions and months with at least one delayed ticket.

Output

  1. One row per region, month, and top driver, with ties retained through rank 3.
  2. Columns: region, month, order_count, order_revenue, ticket_count, delayed_ticket_count, avg_resolution_hours, delayed_rate, prior_month_delayed_rate, driver, delayed_driver_count, driver_share_of_delayed, driver_rank.
  3. Sort by region, month, driver rank, and driver name.

Schema

accounts
ColumnTypeDescription
account_idPKINTUnique Confluent customer account identifier
account_nameVARCHAR(100)Customer account name
regionVARCHAR(30)Operational region for the account
orders
ColumnTypeDescription
order_idPKINTUnique order identifier
account_idINTAccount that placed the order
order_dateDATEDate the order was placed
order_amountNUMERIC(12,2)Order value in USD
support_tickets
ColumnTypeDescription
ticket_idPKINTUnique support ticket identifier
account_idINTAccount associated with the ticket
order_idINTRelated order when the ticket concerns a specific order
created_atTIMESTAMPTicket creation timestamp
resolved_atTIMESTAMPTicket resolution timestamp
issue_typeVARCHAR(50)Operational issue category
Tablesordersaccountssupport_tickets
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